trigonometry 10

Question: Prove the following identity: Answer: ..

Question: Find sin q if Answer: (i) In I quadrant sin q is positive (ii) In IV quadrant sin q is negative. (iii) In III quadrant sin q is negative..

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With trigonometry we can find the height of a building or the width of a river without actually climbing or crossing. Certain basic definitions are necessary to further develop this subject. The ratios of two sides of a triangle are taken. There are six possible combinations. Each ratio i..

Question 1 - Question: Answer: Solve the equations sec q + tan q = x ....(..

Question 1 - Question: Prove that (2 cos q + 1) (2 cos q - 1) = 2 cos 2 q + 1. Answe..

Question: Answer: (i) Dividing (1) by (2) we get ..

Question: Answer: ..

Question: If A+B=45, prove that (1 + tan A) (1 + tan B) = 2. Answer: ..

Question: Answer: ..